US2677271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for testing materials having plastic flow characteristics
Assignee: Standard Oil Co
•
Filing: 1950-05-06
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Granted: 1954-05-04
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Expires: 1970-05-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Robert B Faris
- 👤 Harley F Hardman
- 👤 Harrison M Stine
- 👤 Melvin M Fink
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:07
CPC Classifications
G; G01; G01L; G01L1/00; G01L1/20; G01L1/22; G01L1/225; G01N; G01N3/00; G01N3/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB121013A
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US1827805A
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US2081598A
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US2346981A
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US2386989A
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US2423867A
Cited
US2426390A
Cited
GB587096A
Cited
US2504985A
Cited
US2487681A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-03 | 1957-11-02 | 1958-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-03 | 1961-11-02 | 1962-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-03 | 1965-11-02 | 1966-05-04 | $7700.00 | Window Closed / Lapsed |